The person in the question does not perform self-harm or engage in supernatural activities; rather, they keep watch at night, tormented by guilt and the contemplation of dark deeds.
The person in the given content exhibits a profound sense of guilt and mental torment. The actions of self-flagellation are not described literally, but metaphorically, through vivid mental agony and remorse. The individual is haunted by past actions, such as the possibility of causing harm to others, and is plagued by a deeply rooted sense of their own sinfulness.
They are also experiencing a fear of supernatural punishment and contemplating dark deeds that may include harm to self or others. However, there is no clear evidence that the person is engaging in supernatural activities or physically harming themselves as suggested by options 1 or 3. The closest action related to the three given choices is the act of keeping vigil at night and being tortured by thoughts of their own guilt and envisaged horrors (option 2).